StopWatch (Camel :: Util 3.20.2 API)

java.lang.Object
- org.apache.camel.util.StopWatch

```
public final class StopWatch
extends Object
```
A very simple stop watch.
This implementation is not thread safe and can only time one task at any given time.

Constructor Summary

Constructors
Constructor	Description
`StopWatch()`	Starts the stop watch
`StopWatch(boolean start)`	Creates the stop watch
`StopWatch(long timeMillis)`	Starts the stop watch from the given timestamp

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`static long`	`elapsedMillisSince(long start)`	Deprecated.
`boolean`	`isStarted()`	Whether the watch is started
`void`	`restart()`	Starts or restarts the stop watch
`long`	`taken()`	Returns the time taken in millis.
`long`	`takenAndRestart()`	Returns the time taken in millis and restarts the timer.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - StopWatch
```
public StopWatch()
```
    Starts the stop watch
  - StopWatch
```
public StopWatch(long timeMillis)
```
    Starts the stop watch from the given timestamp
  - StopWatch
```
public StopWatch(boolean start)
```
    Creates the stop watch
    
    Parameters:
    
    start - whether it should start immediately
- Method Detail
  - restart
```
public void restart()
```
    Starts or restarts the stop watch
  - isStarted
```
public boolean isStarted()
```
    Whether the watch is started
  - taken
```
public long taken()
```
    Returns the time taken in millis.
    
    Returns:
    
    time in millis, or 0 if not started yet.
  - takenAndRestart
```
public long takenAndRestart()
```
    Returns the time taken in millis and restarts the timer.
    
    Returns:
    
    time in millis, or 0 if not started yet.
  - elapsedMillisSince
```
@Deprecated
public static long elapsedMillisSince(long start)
```
    Deprecated.
    
    Utility method to provide the elapsed time using milliseconds since epoch. This serves as an alternative for the former constructor based on a Date argument. This should be used only when converting old code that relies on that constructor as it can provide incorrect measurements in rare circumstances
    
    Parameters:
    
    start - the timestamp in milliseconds since epoch
    
    Returns:
    
    the elapsed time in milliseconds